Baxks



(No Model.)

H. H, FAIRBANKS & W OOUGHLIN.

SUPPORTING FRAME FOR ELECTRIC LAMPS.

- Pa,tented Jan 25, 1887,

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UNITED STATES PATENT rricn,

HERBERT H. FAIRBANKS AND WILLIAM H. COUGHLIN, OF WORCESTER,

MASSACHUSETTS, ASSIGNORS TO THE WORCESTER ELECTRIC LIGHT COM- PANY, OF SAME PLACE.

SUPPORTING-FRAME FOR ELECTRlC LAMPS.

SPECIFICATION forming part of Letters Patent No. 356,580, dated January 25, 1887.

Application filed November 9, 1886. Serial No. 218,396. (No model.)

To all whom it may concern:

Be it known that we. HERBERT H. FAIR- BANKS and WILLIAM H. COUGHLIN, both of Voreester, county of Worcester, and State of Massachusetts, havein vented an Improvement in Supporting-Frames for Electric Lamps, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings repro resenting like parts.

It is now customary in using electrical-c lights for street-lighting purposes to place the hood of the lamp upon a suitable pole, usually about thirty feet high, located at the edge of 1 the sidewalk or justofi the street and adjacent to the curbing. This has been found in practies to be very objectionable, especially during the summer season,when the foliage on the shade-trees is so dense as to absorb in some cases almost entirely the light from thelamps;

and even if effort is made to adapt the location of the pole and lamp in a way that may in the greatest degree avoid this objection, it has been found even then exceedingly unsatis- 2 factory. To obviate this objection various methods have been employed, such as the use of long arms, some of them attempting to be made adjustable, that they may be lowered or elevated, but all of them attended with more 0 or less danger, and proving in practical work to be quite unsatisfactory.

This invention has for its object to provide for an exceedi ngl y strongand substantial means of suspending or locating the lamp and hood over the center of the street,where therays of light may be extended up and down the street with less obstruction by foliage, and also reaching under the lower limbs upon the sidewalk both sides of the streets, and to avoid danger to the attendant who operates it, and the objection of being swayed by heavy winds, and thus obtain the greatest security and economy of service by the distribution of the light, the stability of the structure, and avoidance 5 of accidents or danger.

In carrying out this invention a supporting frame or truss elevated above and extended across a street is attached to the upper ends of two poles, the said truss having a suitable from the main line being connected to the lamp, an endless-rope and pulley contrivance being employed to draw the lamp and hood along the track from its point of suspension above the street toward one of the poles to be reached by the attendant upon the pole.

Figure 1 shows in side elevation a support ing frame or truss having a track upon which is mounted an electric arc lamp, thesupporting-frame, partially broken away at intervals, being erected upon two poles, also shown as broken out to save space upon the drawings; Fig. 2, a top view of the devices shown in Fig. 1;and Fig. 3, a cross-section of Fig.1, taken on the dotted line x at, part of the lamp being broken away. I

The supporting-frame consists of lower rails or bars, at, upper rails or bars, 11, braces c, and

bars d, to join the upper and lower rails together, thus forming a truss like structure of sufficient strength and durability to withstand the weight of an electric-arc lamp and hood, and to retain the same in fixed position under the action of high winds, 86C.

The bars and braces in practice are made of angle-iron, to thus secure the greatest strength with least weight of metal.

The supportingframe is terminated with end pieces, e e, which are attached to the poles P, placed, for instance, at opposite sides of a street or passage-way, said end pieces having connected to them by a bolt, 6 a crossbar, e, which is placed at the opposite side of the said poles P, to thereby sustain or attach the supporting-frame at the upper ends of the poles.

Two supporting rails or tracks, f, are j oined to the supporting frame or truss and extend forward to substantially the center of the said frame. v

The hood H of the lamp is provided with uprights h, (herein shown as four in number,) joined together at their upper ends by crosspieces k, which latter carry rollers 7*, which follow upon the supporting rails or tracks f. To the endmost cross-bar, s, joining the supporti'ng-railsf, a small pulley is attached, over which passes a cord, 2', which is extended over a small pulley at the pole, the cord attached to the said lamp and hood, so as to move it.

Two flexible conductors, O, leadingtrom the main line are connected with tlielamp, so that the attendant upon climbing the pole 1? may,

by the cord i, draw the lamp toward him, and

after replenishing it with a carbon or otherwise fixing it may, by the cord, replace the lamp at substantially the center oi the supportingframe.

By employing two poles and a supportingframe such as herein described it will be and the supporting rails or tracks f, combined with a lamp having the frame composedof the rods h h and the rollers r to follownpon the tracks, substantially as described.

3. The rigid supporting truss like frame herein descri bed,suspended betweentwo poles,

and the supporting rails ortracksf, combined with the hood H, having the attached frame to carry the rollers r to follow upon the tracks,

and a cord or rope, t, to operate, all substantially as described.

4. The rigid supporting truss-like frame herein described,suspended between two poles,

and the supporting rails or tracks, combined with the electric lamp suspende"' upon the supporting rails or tracks, the flexible conductors O, and means, substantially as described,,

for moving the lamp toward and from its point of suspension on the said track, substantially as and for the purpose set forth.

In testimony whereof we have signed our names to this specification-in the presence of 50 two subscribing witnesses.

HERBERT H. FAIRBANKS; \VILLIAM H. OOUGHLIN.

\Vitnesses:

HERBERT L.- ADAMs, WM. E; LOWE. 

